presence of one man, who lay unconscious on the floor. The cage was
ascending so leisurely that Gurdon was in a position to make a close
examination of the figure before the whole structure had risen to the
next floor. It did not need a second glance to tell Gurdon that the man
in the cage was the attendant, and that he was suffering from the same
drug which had placed his boy assistant beyond all power of interfering.

"Now what does all this mean?" Gurdon muttered. "Who is there on the
floor above who is interested in getting these two people out of the way?
What do they want to bring up or send down which it is not safe to
dispose of by the ordinary means? I think I'll wait and see. No sleep for
me to-night."

The lift vanished in the same silent way. It hung overhead for some
little time, and once more appeared in sight, this time absolutely empty,
save for a small square box with iron bands at the corners, which lay
upon the floor. As the cage descended, Gurdon suddenly made up his mind
what to do. He sprang lightly on to the top of the falling cage, and
grasped the rope with both hands. A moment later and he was descending in
the darkness.

As far as he could judge, the lift went down to the basement, where, for
the time being, it remained. There was a warm damp smell in the air,
suggestive of fungus, whereby Gurdon judged that he must be in the vaults
beneath the hotel. As his eyes became accustomed to the gloom, he could
make out just in front of him a circular patch of light, which evidently
was a coal shoot.

He had no need to wait now for the full development of the adventure.
He could hear whispered voices and the clang of metal, as if somebody